Weird Sniper/Aircrew Smock?

Here it is, its sort of inbetween and Aircrew Smock and Sniper Smock its also its the same cut as an Aircrew Smock but I doubt its a modified one as there is another on EW-Trading, possibly company modified/prototype? , not bad for a fiver though, saved me £40 because the bloke didn't know what he was selling, there were also some MINT 68 Pattern Smocks aswell, but I didn't ask on those I think its 68 Pattern as the colour and pattern differs from my 85 Pattern Smock, the photo doesn't do the Pattern justice though.